▎ 摘　　要

NOVELTY - Preparing paraffin/graphene foam-graphene aerogel composite phase change material involves depositing graphene foam on the foam nickel by chemical vapour deposition, immersing the deposited graphene foam in a graphene oxide solution, freeze-drying to obtain a graphene foam-graphene oxide aerogel composite, reducing the graphene foam-graphene oxide aerogel composite obtained at a high temperature to obtain a graphene foam-graphene aerogel composite, immersing the graphene foam-graphene aerogel composite in hydrochloric acid to etch off nickel foam, and obtaining the graphene foam-graphene aerogel composite, mixing the graphene foam-graphene aerogel compound obtained with paraffin, and obtaining the paraffin/graphene foam-graphene aerogel compound phase-change material in a mode of vacuum impregnation of the phase-change material. USE - Method for preparing paraffin/graphene foam-graphene aerogel composite phase change material. ADVANTAGE - The composite phase-change material constructed by the method has high chemical stability and good heat conductivity due to the three-position framework network, so that the final composite phase-change material has good stability, the load of the phase-change material is high, and the heat conductivity is greatly improved compared with that of paraffin. DESCRIPTION OF DRAWING(S) - The drawing shows PW/GF-GA5 differential scanning calorimetry curve. (Drawing includes non-English language text).